The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2022
Filed:
Dec. 31, 2020
Southwest Petroleum University, Sichuan, CN;
Xiaojiang Yang, Sichuan, CN;
Difei Han, Sichuan, CN;
Jincheng Mao, Sichuan, CN;
Heng Zhang, Sichuan, CN;
Chong Lin, Sichuan, CN;
Jinhua Mao, Sichuan, CN;
Jinzhou Zhao, Sichuan, CN;
SOUTHWEST PETROLEUM UNIVERSITY, Chengdu, CN;
Abstract
An emulsifier with high temperature resistance, low viscosity and low corrosiveness, and an emulsified acid system comprising the same. The emulsifier includes a viscoelastic surfactant, which is prepared by a quaterization of fatty acid acyl propyl dimethylamine and a halogenated compound; by a quaterization of a long-chain halogenated hydrocarbon and a tertiary amine compound; or by a reaction of the fatty acid acyl propyl dimethylamine with a linking group synthesized by epichlorohydrin and an alkylamine compound.